Home / 831,945.78-1,148,085.23-449,972.46

Finding the Fourth Proportional to 831,945.78, 1,148,085.23 and 449,972.46

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Solution

The fourth proportional to 831,945.78, 1,148,085.23 and 449,972.46 is: 620,962.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,945.78 : 1,148,085.23 = 449,972.46 : x
  2. Step 2: Convert to fraction form
    831,945.78/1,148,085.23 = 449,972.46/x
  3. Step 3: Cross multiply
    831,945.78x = 1,148,085.23 × 449,972.46
  4. Step 4: Simplify right side
    831,945.78x = 516,606,732,982.90
  5. Step 5: Solve for x
    x = 516,606,732,982.90/831,945.78
  6. Step 6: Final answer
    x = 620,962.02

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.